Abstract: A corrugated fin strip for heat exchanger tubes has interfacing parallelogram shaped fin panels joined by successive parallel crests, all fin panels having the same parallelogram shape selected in accordance with a desired configuration of the heat exchanger. In one embodiment, these parallel crests extend obliquely between the longitudinal edges of a rectilinear metal strip from which the fin strip is formed, and are adapted to be alternatively attached to the flat face of a heat exchanger tube in oblique relation to parallel sides of the tube, thereby defining an air flow direction oblique to the length thereof. In a second embodiment, the successive parallel crests extend perpendicularly to the opposite edges of the rectilinear metal strip, are displaced alternately therefrom by a selected distance, and are adapted to be attached alternately to the opposed flat faces of a pair of longitudinally parallel heat exchanger tubes, thereby displacing one tube transversely from the other.

Abstract: A curved heat exchanger for a vehicle has tubes generally sector shaped in cross section and arranged in an arcuate pattern to transmit heat exchanger fluid between laterally spaced tanks. One embodiment has discrete heat exchanger fluid sections respectively connected to a vehicle engine, torque converter transmission and between the air conditioner compressor and evaporator. The tubes are tilted to align air passages therebetween with the radial direction of air flow discharged from an interior fan so that there is improved fan-heat exchanger matching resulting in reduced separation of air from the surfaces of the heat exchanger tubes and turbulence in the air passages. The side walls of adjacent tubes are equally spaced from one another to receive standard width air centers therebetween. The tubes may have discrete inner and outer flow sections insulated from one another and respectively employed to conduct engine coolant and another heat exchanger fluid such as for the air conditioning system.

Abstract: A heat exchanger is disclosed comprising a pair of laterally spaced fluid conducting tanks operatively interconnected by a plurality of elongated fluid conducting tubes having sector shaped cross sections and arcuately spaced from one another in a circular pattern to present parallel interfacing sides. A plurality of elongated corrugated fins or air centers each having convolutions of substantially constant height and width to have spaced lines of contact along the width and length of each of the sides of the tubes for maximizing heat transfer and so that the tubes will be optimally supported to provide increased resistance to pressure ballooning and burst. These air centers are standard corrugated rectilinear components that reduce complexity and cost of this circular heat exchanger. This heat exchanger can be arranged in a parallel relationship with a transverse automotive engine and a cooling fan operatively mounted within the heat exchanger can be directly driven by the engine.

Abstract: An improved artificial fishing lure for top water or surface fishing of the general type sometimes referred to as the "buzzbait" variety. The body of the lure has a forward section of hull shape provided with at least one keel or fin extending downwardly at the trailing end of the hull. The rearward section of the lure body is a solid shank with a hook attached at its trailing end and suitable for affixing various types of artificial or natural baits. The body of the lure has a flat surface forming a bend at an angle of 120.degree. to 170.degree.. The keel or fin, centered beneath the bend at the trailing end of the hull, has a circle painted on each side so as to imitate an eye. Two bulges are disposed in the lower surface of the lure body between the bend and the fin for the purpose of adding stability to the lure body. A loop is affixed proximate the forward end of the hull for attaching the end of a fishing line. The loop is formed with an upper leg disposed rearwardly at an angle.